Rotary heat exchanger for heat recovery
Decentralised supply and extract air units ventilate the room and cover the cooling and heating load in accordance with the technical data.
An EC centrifugal fan takes in the outdoor air which then flows through the motorised shut-off damper and the outdoor air filter.
The outdoor air then flows through the rotary heat recovery unit, which can be switched off in energy efficient operating situations.
Before the supply air flows into the room like displacement air, it is heated or cooled in the heat exchanger if required (optional for 4-pipe units).
The extract air first passes through the extract air filter, then flows through the heat recovery unit, the extract air fan and the motorised shut-off damper before it is discharged to the outside as exhaust air.
If the indoor air quality is sufficient, the FSL-CONTROL III control system switches to energy-efficient secondary air mode by closing the outdoor air dampers.
The control system compares the indoor air quality setpoint value to the actual values measured at the CO2 sensor and switches automatically between outdoor air and secondary air operation..
In case of a power failure, the outdoor air and exhaust air dampers are closed to ensure fire protection, frost protection and to avoid draughts. This is ensured by a capacitor in each actuator.
Near the external wall, the supply air is discharged into the room with a medium velocity between 0.5 and 0.8 m/s. Due to the induction effect, the supply air velocity is rapidly reduced so that, in cooling mode, the supply air displaces the room air over the entire floor area.
Near heat sources such as people or equipment, a lift current is formed by natural convection, so that the air is exchanged primarily in these areas.
Width | 2100 mm |
Height | 740 mm |
Depth | 403 mm |
Volume flow rate | 200, 300, 400 m³/h (boost 600 m³/h) |
Nominal volume flow rate | 400 m³/h |
Sound power level | 31 – 49 dB(A) |
Degree of heat recovery efficiency | 75% |
maximum operating pressure, water side | 6 bar |
Max. operating temperature | 75 °C |
Supply voltage | 230 V AC ±10 %, 50/60 Hz |
Power rating | 617 VA |
Weight | 150 kg |
X-CUBE/SCHOOLAIR-B-HV: Heat recovery construction Type 5 (2-pipe version, active heating)
Supply air flow rate | m³/h | 200 | 300 | 400 | 600 |
Total heating capacity | W | 1560 | 2350 | 2940 | 3620 |
Room heating capacity | W | 949 | 1435 | 1718 | 1808 |
Air temperature inside the unit | °C | 12.0 | 12.0 | 12.0 | 12.0 |
Supply air temperature | °C | 32.6 | 32.7 | 31.4 | 28.0 |
Hot water flow rate | l/h | 40 | 65 | 90 | 100 |
Water temperature, inlet | °C | 50 | 50 | 50 | 50 |
Water temperature, outlet | °C | 31.9 | 36.4 | 37.2 | 34.2 |
Water side pressure drop | kPa | 1.8 | 6.3 | 10.4 | 10.4 |
Sound power level LWA | dB(A) | 31 | 37 | 42 | 49 |
Sound pressure level with 8 dB system attenuation | dB(A) | 23 | 29 | 34 | 41 |
Active power Pel | W | 40 | 65 | 105 | 205 |
Air-side data Heating mode:
X-CUBE/SCHOOLAIR-B-HV: Heat recovery construction Type 3 (2-pipe version – isothermal supply air)
Supply air flow rate | m³/h | 200 | 300 | 400 | 600 |
Total heating capacity | W | 770 | 1120 | 1550 | 2120 |
Room heating capacity | W | 158 | 215 | 331 | 294 |
Air temperature inside the unit | °C | 12.0 | 12.0 | 12.0 | 12.0 |
Supply air temperature | °C | 22.1 | 21.9 | 22.2 | 21.3 |
Hot water flow rate | l/h | 30 | 50 | 90 | 150 |
Water temperature, inlet | °C | 50 | 50 | 50 | 50 |
Water temperature, outlet | °C | 27.8 | 30.4 | 35.0 | 37.7 |
Water side pressure drop | kPa | 1.2 | 2.9 | 8.1 | 20.0 |
Sound power level LWA | dB(A) | 31 | 37 | 42 | 49 |
Sound pressure level with 8 dB system attenuation | dB(A) | 23 | 29 | 34 | 41 |
Active power Pel | dB(A) | 40 | 65 | 105 | 205 |
Air-side data Heating mode:
X-CUBE/SCHOOLAIR-B-HV: Heat recovery construction Type 4 (4-pipe version)
Supply air flow rate | m³/h | 200 | 300 | 400 | 600 |
Total cooling capacity | W | 620 | 930 | 1210 | 1550 |
Room cooling capacity | W | 512 | 768 | 986 | 1229 |
Air temperature inside the unit | °C | 27.5 | 27.5 | 27.5 | 27.5 |
Relative humidity | % | 51.8 | 51.8 | 51.8 | 51.8 |
Water content of the dry air | kg | 11.9 | 11.9 | 11.9 | 11.9 |
Supply air temperature | °C | 18 | 18 | 18.3 | 19.6 |
Condensate | g/h | 0 | 0 | 0 | 0 |
Chilled water flow rate | l/h | 88 | 145 | 200 | 200 |
Water temperature, inlet | °C | 16 | 16 | 16 | 16 |
Water temperature, outlet | °C | 22.1 | 21.5 | 21.2 | 22.7 |
Water side pressure drop | kPa | 6.9 | 16.5 | 29.2 | 29.2 |
Total heating capacity | W | 1980 | 2930 | 3850 | 5800 |
Room heating capacity | W | 1364 | 2012 | 2623 | 3957 |
Air temperature inside the unit | °C | 12.0 | 12.0 | 12.0 | 12.0 |
Supply air temperature | °C | 38.1 | 37.8 | 37.4 | 37.5 |
Hot water flow rate | l/h | 50 | 75 | 100 | 160 |
Water temperature, inlet | °C | 50 | 50 | 50 | 50 |
Water temperature, outlet | °C | 15.6 | 16.0 | 16.5 | 18.5 |
Water side pressure drop | kPa | 3.5 | 7.2 | 11.9 | 27.3 |
Sound power level LWA | dB(A) | 31 | 37 | 42 | 49 |
Sound pressure level with 8 dB system attenuation | dB(A) | 23 | 29 | 34 | 41 |
Active power Pel | W | 40 | 65 | 105 | 205 |
Air-side data Cooling mode:
Air-side data Heating mode:
SCHOOLAIR-B-HV-2/KM/2100x740x403/C3
Under sill units for horizontal mounting on the façade
Please note:
The under sill ventilation unit variant described has an integrated single room control system for autonomous classroom operation. The supplied controllers contain the parameters for standard operation according to our control description.
School ventilation unit – under sill installation – MASTER UNITUnder sill ventilation unit TROX X-CUBE/SCHOOLAIR-BHV with supply and extract air function, rotary heat recovery unit and switchover option to secondary air operation (air quality dependent) as well as heating function for installation on an external wall below the window sill:
Units - dimensions and weights:Width: approx. 2100 mm (without fixing brackets)Height: approx. 740 mm (without levelling feet, additional distance for extract air suction)Depth: approx. 403 mm (without façade sealing)Weight: approx. 150 kg
FSL-CONTROL III controller
Including control system FSL-CONTROL III, as described below: FSL-CONTROL III is described as a stand-alone single room control system with a simple timer. Optional expansions, such as integration into an on-site MCE/BACS via Modbus TCP, Modbus RTU, BACnet MS/TP or BACnet IP, humidity sensors, return temperature sensors, electromotive valve actuators or pressureindependent control valves, are included in the delivery programme, but must be exchanged for the standard components in the following description. A room temperature signal is also required. Various room control panels and sensors are available to provide this signal. Suitable optional equipment can be found after the following standard equipment for standalone operation. - please refer to: Optional control accessories. We recommend commissioning by TROX. You will find related text modules below.
TROX control module FSL-CONTROL III (order code ...-C3-MA...):
Real time clock (RTC)
Real Time Clock (RTC/real time clock) (order code ...-T/...):
CO2 sensor
CO2 sensor (order code…/C/…):
Supply air temperature sensor
Supply air temperature sensor (order code .../Z/...):
Outdoor air temperature sensor
Outdoor air temperature sensor (order code .../A/...):
Water side components
Water-side components (Order code…/HV-R-…):
Valve actuator:
1 × thermoelectric actuator for opening and closing valves, with position indicator, including plug-in connecting cable, operating voltage 24 V DC, control voltage 0 - 10 V DC, power consumption 1 W, protection class: IP 54 Straight-way valve:
1 × small straight-way valve ½" standard, hand-tight preassembled, PN 16, DN 10, kvs 0.4 (alternatively 0.25, 0.63 or 1.0 m³/h - please let us know the required kvs value), straight-way 9 / 17 PD-06/2024 - DE/en valve body with external thread on both sides ½" flat sealing, media temperature 1 to 110 °C
Lockshield:
1 × lockshield on both sides ½", hand-tight pre-assembled, nominal width DN 15; straight-through valve body with external thread on both sides ½" flat sealing, for regulating and shut-off, maximum media temperature 120 °C
Optional control accessories
Optional equipment to increase the comfort of the FSLCONTROL III: TROX room control panels for FSL-CONTROL III At least one room temperature signal is required per room. There are several variants of TROX room control panels available, optionally with or without selector switch. Additionally, we offer a room temperature sensor RTF without control elements. Alternative on-site room control panels must be connected via bus communication.
Digital room control panels for surface mounting:
For operation and adjustment of the ventilation units.
Supplied loosely as an accessory. Connection to the master unit via Modbus serial line. Project-specific software including setpoint value adjuster, various status displays, selector switch, CO2 indicator. Touch-sensitive colour display 3.5" 320 × 240 pixels. Sensor: NTC 10 kΩ. Degree of protection: IP 20. Type: Schneider TM172DCLWT. Dimensions (H × B × T): 120 × 86 × 25 mm, weight: 340 g, colour: white. Installation: Surface mounting or on a standard flush-mounted box. Power supply: 24 V DC (including suitable switching power supply unit for flush-mounted installation). Power consumption: 3.2 VA/1.3 W. Other design frames are available upon request and for a surcharge.
Control panels with selector switch for surface mounting:
Control panel with selector switch, type Thermokon, for surface mounting:
Supplied loosely as an accessory, with room temperature sensor, setpoint adjuster, override button, LED and 3-step selector switch as well as off and automatic, casing made of PVC0 pure white (RAL 9010), mounting on 60 mm flushmounted box or directly on the wall, NTC thermistor as sensor element, resistance 20 kΩ at 25 °C, dimensions (B × H × T): 84.5 × 84.5 × 25 mm, operating temperature: -35 to 70 °C
Control panels without selector switch for surface mounting:
Control panel without selector switch, type Thermokon, for
surface mounting:
Supplied loosely as additional part, with mode display, push button and setpoint adjustment, sensor NTC 20 kΩ, protection level: IP 20, dimensions (B x H x T) 84.5 × 84.5 × 25 mm
Room temperature sensor for surface mounting:
Room temperature sensor TROX RTF, surface mounting Supplied loosely as an accessory, room temperature sensor without any control elements, measuring range -35 to 70 °C, sensor NTC 10 kΩ, connection terminal screw terminal, d = 1.5 mm, protection level IP 20, surface mounting or on a 70 mm flush-mounted box, dimensions (B × H × T): 85 x 85 x 30 mm, casing ABS, in RAL 9010
Control panels without selector switch for flush mounting: For manual operation of the ventilation units with a high-quality look and the matching design from a wide range of switch programmes, the unit is suitable for particularly design-oriented facilities.
Control panel without selector switch, type Thermokon, for flush mounting, switch programme Berker S.1, polar white
Control panel without selector switch, type Thermokon, for flush mounting, switch programme Berker Q.3, white
Control panel without selector switch, for flush mounting, type Thermokon, switch programme Busch-Jäger future linear, white
Other switch programmes on request.
Control panels without selector switch and without setpoint value adjuster, for flush mounting:
Control panel without selector switch and without setpoint value adjuster, type Thermokon, for flush mounting, switch programme Gira E2
Other switch programmes on request
Electromotive valve actuator:
As an alternative to the thermoelectric actuator, installed as standard
Pressure-independent control valve
As an alternative to the small straight-way valve, installed as standard
1 × pressure-independent control valve, hand tight preassembled with modulating ON/OFF control in combination with an externally adjustable, dynamic volume flow controller, with full valve authority, nominal width DN 10, straightthrough valve body with male thread on both sides ½" flat sealing, media temperature 0 to 120 °C
Interface for integration into an on-site MCE/BACS: Modbus TCP interface including web server (order code .../MT/...) To increase convenience, we recommend integration into an onsite MCE/BACS or visualisation with X-TAIRMINAL. FSLCONTROL III can be integrated into an on-site MCE/BACS via the Modbus TCP protocol. Additionally including web server for simplified configuration, commissioning and remote monitoring of the unit. The MCE/BACS is not included in the supply package from TROX GmbH, only the interfaces listed above are available here.
BACnet IP interface including web server (order code .../BI/...) To increase convenience, we recommend integration into an onsite MCE/BACS. FSL-CONTROL III offers the option of being integrated into an on-site MCE/BACS via the BACnet IP protocol. Additionally including web server for simplified configuration, commissioning and remote monitoring of the unit. The MCE/BACS is not included in the supply package from TROX GmbH, only the interfaces listed above are available here.
Modbus RTU (order code .../MR/...)
To increase convenience, we recommend integration into an onsite MCE/BACS. FSL-CONTROL III offers the option of being integrated into an on-site MCE/BACS via Modbus RTU. The MCE/BACS is not included in the supply package from TROX GmbH, only the interfaces listed above are available here. Modbus RTU interface (RS485)
BACnet MS/TP (order code .../BM/...)
To increase convenience, we recommend integration into an onsite MCE/BACS. FSL-CONTROL III offers the option of being integrated into an on-site MCE/BACS via BACnet MS/TP. The MCE/BACS is not included in the supply package from TROX GmbH, only the interfaces listed above are available here. BACnet MS/TP interface (RS485)
Version as SLAVE DEVICE
Identical to the MASTER DEVICE, as described above, but with the following deviations:
Commissioning of the decentralised ventilation units
Commissioning/parameterisation of the decentralised ventilation units without integration into an on-site MCE/BACS
Commissioning/parameterisation of the decentralised ventilation units with integration into an on-site MCE/BACS
Instruction in operation and maintenance
SA-B | – | HV | – | 4 | – | 1 | / | KR | / | 2100 × 740 × 403 | / | C3 | – | MA | – | T | / | MR | / | C | / | Z | / | A | / | HV | – | R | – | 0,40 | / | KV | – | R | – | 0,40 |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ||||||||||||||||||
1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 |
HV high volume flow rate and rotary heat recovery unit
3 Heat exchangerKL with condensate drain and water connection left
6 Nominal size [mm]Order example: SA-B-HV-4-1-KR/2100×740×403/C3-MA-T/MR/C/Z/A/HV-R-0.40/KV-R-0.40
Type | SA-B | horizontal decentralised sill ventilation unit X-CUBE/SCHOOLAIR-B |
Variant | HV | high volume flow rate and rotary heat recovery unit |
Heat exchanger | 4 | 4-pipe |
Heat exchanger construction | 1 | Heat exchanger type 1 |
Construction | KR | with condensate drain and water connection right |
Nominal size [mm] | 2100×740×403 | Width 2100, height 750, depth 403 |
Control | C3 | with FSL-CONTROL III |
Control function | MA | Master |
Real time clock | T | with real time clock |
Interface | MR | with Modbus RTU |
Air quality sensor | C | with CO2sensor |
Supply air temperature sensor | Z | with supply air temperature sensor |
Outdoor air temperature sensor | A | with outdoor air temperature sensor |
Heating valve | HV | with thermoelectric actuator |
Lockshield – heating circuit | R | with lockshield |
kVS value – heating valve | 0.40 | 0.40 (straight-way valve) |
Cooling valve | KV | with thermoelectric actuator |
Lockshield – cooling circuit | R | with lockshield |
kVS value – cooling valve | 0.40 | 0.40 (straight-way valve) |
Order example: SA-B-HV-4-1-KR/2100×740×403/C3-SL/MT/Z/HV-R-0.40/KV-R-0.25
Type | SA-B | horizontal decentralised sill ventilation unit X-CUBE/SCHOOLAIR-B |
Variant | HV | high volume flow rate and rotary heat recovery unit |
Heat exchanger | 4 | 4-pipe |
Heat exchanger construction | 1 | Heat exchanger type 1 |
Construction | KR | with condensate drain and water connection right |
Nominal size [mm] | 2100×740×403 | Width 2100, height 750, depth 403 |
Control | C3 | with FSL-CONTROL III |
Control function | SL | Slave |
Real time clock | - | - |
Interface | MT | with Modbus TCP |
Air quality sensor | - | - |
Supply air temperature sensor | Z | with supply air temperature sensor |
Outdoor air temperature sensor | - | - |
Heating valve | HV | with thermoelectric actuator |
Lockshield – heating circuit | R | with lockshield |
kVS value – heating valve | 0.40 | 0.40 (straight-way valve) |
Cooling valve | KV | with thermoelectric actuator |
Lockshield – cooling circuit | R | with lockshield |
kVS value – cooling valve | 0.25 | 0.25 (straight-way valve) |
Special characteristics
Construction KL
Special characteristics
Construction KR
Installation and commissioning
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Contacto
Estamos aquí para ayudarle
Por favor indique el asunto de su consulta y sus datos de contacto.
Tel.: +34 976 50 02 50 | Fax: +34 976 50 09 04
Contacto
¡Gracias por su mensaje!
Su mensaje se ha recibido con éxito en el buzón del SAT de TROX.
En seguida nos pondremos en contacto con usted.
En caso de que disponga de cuestiones adicionales, puede contactar con nosotros en: Tel.: +34 976 50 02 50 | Fax: +34 976 50 09 04